1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2018 Broadcom 3 * All rights reserved. 4 */ 5 6 #ifndef _BNXT_TXR_H_ 7 #define _BNXT_TXR_H_ 8 9 #include <rte_io.h> 10 11 #define BNXT_MAX_TSO_SEGS 32 12 #define BNXT_MIN_PKT_SIZE 52 13 14 struct bnxt_tx_ring_info { 15 uint16_t tx_prod; 16 uint16_t tx_cons; 17 struct bnxt_db_info tx_db; 18 19 struct tx_bd_long *tx_desc_ring; 20 struct bnxt_sw_tx_bd *tx_buf_ring; 21 22 rte_iova_t tx_desc_mapping; 23 24 struct bnxt_ring *tx_ring_struct; 25 }; 26 27 struct bnxt_sw_tx_bd { 28 struct rte_mbuf *mbuf; /* mbuf associated with TX descriptor */ 29 unsigned short nr_bds; 30 }; 31 bnxt_tx_bds_in_hw(struct bnxt_tx_queue * txq)32static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq) 33 { 34 return ((txq->tx_ring->tx_prod - txq->tx_ring->tx_cons) & 35 txq->tx_ring->tx_ring_struct->ring_mask); 36 } 37 bnxt_tx_avail(struct bnxt_tx_queue * txq)38static inline uint32_t bnxt_tx_avail(struct bnxt_tx_queue *txq) 39 { 40 /* Tell compiler to fetch tx indices from memory. */ 41 rte_compiler_barrier(); 42 43 return ((txq->tx_ring->tx_ring_struct->ring_size - 44 bnxt_tx_bds_in_hw(txq)) - 1); 45 } 46 47 void bnxt_free_tx_rings(struct bnxt *bp); 48 int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq); 49 int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id); 50 uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, 51 uint16_t nb_pkts); 52 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64) 53 uint16_t bnxt_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, 54 uint16_t nb_pkts); 55 #endif 56 57 int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id); 58 int bnxt_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id); 59 60 #define PKT_TX_OIP_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 61 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 62 #define PKT_TX_OIP_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \ 63 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 64 #define PKT_TX_OIP_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \ 65 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 66 #define PKT_TX_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 67 PKT_TX_IP_CKSUM) 68 #define PKT_TX_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_IP_CKSUM) 69 #define PKT_TX_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM) 70 #define PKT_TX_OIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 71 PKT_TX_OUTER_IP_CKSUM) 72 #define PKT_TX_OIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \ 73 PKT_TX_OUTER_IP_CKSUM) 74 #define PKT_TX_OIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \ 75 PKT_TX_OUTER_IP_CKSUM) 76 #define PKT_TX_OIP_IIP_CKSUM (PKT_TX_IP_CKSUM | \ 77 PKT_TX_OUTER_IP_CKSUM) 78 #define PKT_TX_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM) 79 80 81 #define TX_BD_FLG_TIP_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 82 TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \ 83 TX_BD_LONG_LFLAGS_IP_CHKSUM) 84 #define TX_BD_FLG_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 85 TX_BD_LONG_LFLAGS_IP_CHKSUM) 86 #define TX_BD_FLG_TIP_IP_CHKSUM (TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \ 87 TX_BD_LONG_LFLAGS_IP_CHKSUM) 88 #define TX_BD_FLG_TIP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 89 TX_BD_LONG_LFLAGS_T_IP_CHKSUM) 90 91 #endif 92